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Radiant|Lab Grown|IGI

4.09ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG696584866

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG696584866

Diamond specifications and retailer prices

From £1,578 GBP
$2,101 USD
As of October 27, 2026
Save £6,054 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,631 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.09ct lab-grown radiant diamond

This 4.09ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG696584866 or 696584866. Listed at 11 retailers as of October 27, 2026, with prices from £1,578 to £7,631, a £6,054 spread on the same certified stone. Taylor and Hart lists it at £7,631. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696584866
Dimensions11.37 × 11.37 × 7.73 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.37 mm11.37 mm4.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696584866
Side View
Table 64.0%Crown 45.7°Girdle: Slightly ThickPavilionCulet: NoneDepth 66.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £4,131 GBP|Low: £1,751 GBP|High: £8,317 GBP|Avg: £4,319 GBP|+49.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 30, 2026
Retailer 7£1,766 GBP
Retailer 3£2,167 GBP
Retailer 8£2,862 GBP
Retailer 9£3,595 GBP
Retailer 5£3,928 GBP
Retailer 1£4,131 GBP
Retailer 10£4,147 GBP
Retailer 2£4,789 GBP
Retailer 4£4,972 GBP
Retailer 6£7,184 GBP
Taylor and Hart£7,631 GBP

17 data points across 11 retailers

11 retailers£1,578 GBP to £7,631 GBP

A
Cheapest Retailer
-
£1,578 GBP
$2,101 USD
A
Retailer 2
-
£1,717 GBP
$2,286 USD
View
A
Retailer 3
-
£1,766 GBP
$2,352 USD
View
Final sale: no returns
A
Retailer 4
-
£2,167 GBP
$2,886 USD
View
A
Retailer 5
-
£2,516 GBP
$3,350 USD
View
A
Retailer 6
-
£2,862 GBP
$3,811 USD
View
Retailer 7
-
£3,928 GBP
A$8,047 AUD
View
Price last confirmed 7 days ago
A
Retailer 8
-
£4,131 GBP
View
A
Retailer 9
-
£4,972 GBP
View
Retailer 10
-
£7,184 GBP
A$14,718 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
Taylor and Hart
6VLLT3A · Oct 30
£7,631 GBP
$10,163 USD
View
10 more retailers have this diamond
Prices start from £1,578 GBPSave up to £6,054 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.09ct Radiant
£1,578 GBP